徐祥德,陶诗言,王继志,陈联寿,周丽,王秀荣. 2002. 青藏高原—季风水汽输送“大三角扇型”影响域特征与中国区域旱涝异常的关系[J]. 气象学报, 60(3):257-266, doi:10.11676/qxxb2002.032
青藏高原—季风水汽输送“大三角扇型”影响域特征与中国区域旱涝异常的关系
THE RELATIONSHIP BETWEEN WATER VAPOR TRANSPORT FEATURES OF TIBETAN PLATEAU-MONSOON “LARGE TRIANGLE” AFFECTING REGION AND DROUGHT-FLOOD ABNORMALITY OF CHINA
投稿时间:2001-03-05  修订日期:2001-08-03
DOI:10.11676/qxxb2002.032
中文关键词:  青藏高原  高原—季风  水汽输送  “大三角扇型”影响域  旱涝异常
英文关键词:Tibetan Plateau  Plateau-Monsoon  Water vapor transport  “Large triangle” affecting region  Drought-flood abnormalilty
基金项目:国家科技部“东亚季风科学试验”预研究(2001CCB00400);国家攀登B类青藏高原试验项目(940211005)
作者单位
徐祥德 中国气象科学研究院, 北京, 100081 
陶诗言 中国科学院大气物理研究所, 100080 
王继志 国家气象中心, 北京, 100081 
陈联寿 中国气象科学研究院, 北京, 100081 
周丽 中国气象科学研究院, 北京, 100081 
王秀荣 中国气象科学研究院, 北京, 100081 
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中文摘要:
      文中分析了南亚季风水汽输送关键区“大三角扇型”区域特征,即该区域以高原地区为顶端,南海季风与印度季风涉及的低纬活动源区为“底边”构成了类似“大三角扇型”的南亚季风水循环相关影响域,此“大三角扇型”水汽输送特征分布描述了副热带高压环流以及中纬度扰动等亚洲季风系统成员的总体动力影响效应;反映了该区域南半球跨赤道气流,赤道西太平洋季风槽及季风活动等水份循环特征。表现了东亚海陆热力强迫、青藏高原非绝热效应、海洋“暖池”及异常孟加拉湾对流活动等诸因素的综合影响。研究表明,大三角区域热源强信号源(高原地气与孟加拉湾、菲律宾、南海等海气过程)区域的水份循环时空演变、遥相关特征及其对亚洲季风爆发的综合影响等均是认识中国及东亚旱、涝异常成因的重要科学问题。
英文摘要:
      By using the NCEP reanalysis water vapor transport flux data, the Doppler radar echoes in middle plateau of TIPEX, the satellite water vapor imagery, the time cross-section of satellite remotely sensed TBB and the dynamic variation of satellite images, the relationship between water vapor transport features of Tibetan Plateau-Monsoon "Large Triangle affecting region" and drought-flood abnormal of China has discussed in this study. It is shown that the water vapor channel is related to the outbreak of Asia monsoon, air-land process on the Plateau and the special abnormal structure of water vapor over the Plateau. The functions of heat sources in low and middle latitude oceans all appear in this area, namely the area where exists the interaction between Plateau and monsoon as well as activit ies for its members. This "large triangle" affecting of the Plateau and monsoon has been described. Thus, the southerly water vapor transport feature in the "large triangle" affecting region shows that there exists teleconnection between the Plateau and low latitude ocean heat sources and water vapor sources.
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